Eaton LPN-RK-30SP Fuse - Class RK1, 30A, 300 kAIC
Part Number: LPN-RK-30SP
Quick Summary
Eaton LPN-RK-30SP fuse provides fast-acting time-delay protection for motor circuits in industrial equipment. When startups spike current, undersized protection leads to nuisance trips—our time-delay RK1 design handles inrush without sacrificing safety. It is CE marked and built as a Class RK1 fuse—paired with a high 300 kAIC interrupt rating for robust protection. This combination supports reliable motor protection and simplifies compliance in panel builds, while being compatible with ferrule-end wiring and standard 2 inch packages.
Product Information
Extended Description
LPN-RK-30SP Eaton: Eaton Bussmann Series Class RK1 fuse, LPN-RK, time-delay, dual-element, current limiting fuse, 30 A, non-indicating fuse, interrupting rating of 300 kA at 250 Vac and 100 kA at 125 Vdc
Product Name
Eaton Bussmann series LPN-RK fuse
Catalog Number
LPN-RK-30SP
UPC
051712538367
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
30 A
Interrupt rating
300 kAIC at 250 Vac 100 kAIC at 125 Vdc
Response time
8 sec at 500%
Voltage rating
250 Vac, 125 Vdc
Fuse type
Time delay Current-limiting
Number of elements
Dual
Packaging type
Standard
Class
Class RK1
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Indicating, High in-rush current motor protection
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Low-Peak 250 V LPN Class RK1 time-delay fuses,1/10-60 A data sheet no. 1003
Time-delay, dual-element design lets it ride through motor inrush currents, reducing nuisance trips while delivering reliable protection for wiring and components. This translates to fewer unplanned shutdowns, longer motor life, and lower maintenance costs in high-cycle applications. Calibrated for Class RK1 systems with ferrule-end connections, it slips into standard control panels without disrupting wiring harnesses, and the 2-inch body fits compact spaces in modern panel layouts. With a high interrupt rating of 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc, it provides robust short-circuit protection across AC and DC duties. That margin helps prevent cascading faults in motor controls, drives, and feeders, safeguarding downstream components and reducing the need for downstream upgrades. The current-limiting action also reduces let-through energy, supporting longer life for contactors and wiring connectors. Dual elements improve reliability under rapid fault conditions, allowing the fuse to clear faults quickly without nuisance trips during legitimate start-ups. The unit is non-indicating, simplifying panel aesthetics and maintenance checks, while providing protection without indicators that can wear or mislead technicians. Its standard packaging and 10-piece quantity support procurement for OEMs and service teams, enabling consistent part numbers across sites. Compatibility with 250 Vac and 125 Vdc systems, along with ferrule-end terminations, ensures straightforward installation into Eaton Bussmann series protection schemes. The LPN-RK-30SP aligns with CE expectations for global distribution and helps panel builders meet safety and regulatory requirements while keeping total installed cost low. Rated 30 A with a response time of 8 seconds at 500% overload, this fuse delivers a practical balance between protection and uptime for motor circuits and drive applications in automation settings.
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FAQs
Yes. The LPN-RK-30SP features ferrule-end x ferrule-end connections and a compact 2 in length, making it straightforward to drop into standard control panels. It ships in standard Bussmann packaging with a quantity of ten, supporting consistent stocking for OEMs and service teams.
The fuse is 30 A rated with voltage ratings of 250 Vac and 125 Vdc. It provides an interrupt rating of 300 kAIC at 250 Vac and 100 kAIC at 125 Vdc, with a time-delay, dual-element design suitable for motor inrush and short-circuit events.
Ideal for motor protection in industrial panels, drives, pumps, and general power circuits. Its time-delay, current-limiting behavior accommodates startup surges, while the Class RK1 form factor supports reliable protection in compact control enclosures.
Yes. The fuse is CE marked and designed to Class RK1 standards, providing regulatory compliance for global deployment in industrial automation and panel-building projects.
The high interrupt rating and current-limiting action reduce downstream damage and nuisance trips, lowering maintenance costs and downtime. Its non-indicating design simplifies inspection, and compatible ferrule-end terminations speed installation, delivering faster ROI in high-cycle motor applications.